Bonjour pourrai vous m’aider stp A) 4x -5 =2x+1 B)-5x+3=-3x-7 C)7x-9=4x+24 D)5x-6=14

Bonsoir

A) 4x -5 =2x+1

4x - 2x = 1 + 5

2x = 6

x = 6/2

x = 3

B)-5x+3=-3x-7

- 5x + 3x = - 7 - 3

- 2x = - 10

x = 10/2

x = 5

C)7x-9=4x+24

7x - 4x = 24 + 9

3x = 33

x = 33/3

x = 11

D)5x-6=14

5x = 14 + 6

5x = 20

x = 20/5

x = 4.

Réponse :

Explications étape par étape

A) 4x -5 =2x+1

4x - 2x = 1 + 5

2x = 6

x = 6/2

x = 3

B)-5x+3=-3x-7

- 5x + 3x = - 7 - 3

- 2x = - 10

x = 10/2

x = 5

C)7x-9=4x+24

7x - 4x = 24 + 9

3x = 33

x = 33/3

x = 11

D)5x-6=14

5x = 14 + 6

5x = 20

x = 20/5